COMP: Do not attach Tcl wrapping to vtk*.h class headers

Do not attach rules to generate vtk*Tcl.cxx wrapper files to the
corresponding vtk*.h class headers with MAIN_DEPENDENCY.  This causes
the Tcl wrapping rules to run while building the main <mod> library in
addition to the <mod>TCL library where they belong.  Instead just add
the vtk*.h class header as a DEPENDS of each rule as is done for Python
and Java wrapping already.

Change-Id: I21d1c0956a97f9d187247227a4431526b4eddb37
Merge topic 'vtk-wrapping-depends' into master

1f6a2dcb COMP: Do not attach Tcl wrapping to vtk*.h class headers